Cited 31 time in webofscience Cited 31 time in scopus

Biomolecule based fiber supercapacitor for implantable device

Title
Biomolecule based fiber supercapacitor for implantable device
Authors
Sim, Hyeon JunChoi, ChangsoonLee, Dong YeopKim, HyunsooYun, Ji-HyunKim, Jung MinKang, Tong MookOvalle, RaquelBaughman, Ray H.Kee, Chang WonKim, Seon Jeong
DGIST Authors
Choi, Changsoon
Issue Date
2018-05
Citation
Nano Energy, 47, 385-392
Type
Article
Article Type
Article
Keywords
LAYER BIOSUPERCAPACITOR APPLICATIONSELECTRONICSCOMPOSITECELLS
ISSN
2211-2855
Abstract
With the growing demand for electronic medical devices for healthcare applications, we studied an implantable supercapacitor that can operate in an implantable electronic device. Here, we report a flexible implantable fiber supercapacitor for an in vivo energy storage device. The fiber supercapacitor has a high flexibility and a high potential to be applied in an implant device because the fiber can be implanted in the blood vessel and the wound can be stitched with the fiber-like suture. The fiber electrodes were fabricated in a biscrolling process that trapped poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)/ferritin nanoclusters within multiwalled carbon nanotube (MWNT) sheets that provide mechanical strength and electrical conductivity. In addition, the supercapacitor is biocompatible because the MWNT sheets are coated with biocompatible materials such as PEDOT:PSS and ferritin. The areal capacitance of the PEDOT:PSS/ferritin/MWNT fiber supercapacitor was 32.9 mF/cm2 in a phosphate buffered saline solution, and the areal energy density was 0.82 μWh/cm2; these values are 52 times higher than that of the guest-free MWNT yarn. The supercapacitor operated well in a mouse and exhibited excellent biocompatibility; the capacitance was maintained above 90% in the mouse after eight days. © 2018 Elsevier Ltd
URI
http://hdl.handle.net/20.500.11750/6284
DOI
10.1016/j.nanoen.2018.03.011
Publisher
Elsevier B.V.
Files:
There are no files associated with this item.
Collection:
Smart Textile Convergence Research Group1. Journal Articles


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